As a noun clacker
is (australia|new zealand) the anus.
As a verb flacker is
to flutter as a bird.
clacker
English
Noun
(
en noun)
(Australia, New Zealand) The anus.
Anagrams
*
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flacker
English
Verb
(
en verb)
to flutter as a bird
- And the cherubins flackered with their wings. --Ezek. x. 19 (Coverdale's translation)
to flicker, quiver